Which rider on the triple-beam balance should always be moved first when finding the mass of an object? Why??

bobpursley is wrong you always move the heaviest rider first and the lightest one last. if you dont believe me then google it

When finding the mass of an object using a triple-beam balance, the rider that should always be moved first is the largest rider (the one on the far left). This is because it represents the largest unit of mass, typically in grams. Moving this rider allows you to roughly estimate the mass of the object.

Here's how you can find the mass of an object using a triple-beam balance:

1. Make sure the balance is on a level surface and set to zero by adjusting the knob or screw underneath the pan until the pointer is at zero.
2. Carefully place the object you want to measure on the pan of the balance.
3. Begin with the largest rider and move it along the beam, starting from the left, until the beam is level.
4. Next, move the middle-sized rider along its beam until the beam is level.
5. Finally, move the smallest rider along its beam until the beam is level.
6. Read and record the mass indicated by each rider. The sum of these three readings is the total mass of the object.

By moving the largest rider first, you ensure that you are estimating the mass of the object using the largest unit of measurement available on the balance. This helps prevent errors and provides a rough estimate of the object's mass.

I say the first one witch is the 10 then is it does not even out or drop below yet try the one hundred and so forth

Move the lessor mass first. Why? If you move the larger mass, the beam might kerplunk to one side and damage the ruby edge balancing the beam.